Aryeh Gregor, Tue, 12 Jan 2010 11:25:49 -0500:
> On Tue, Jan 12, 2010 at 10:58 AM, Leif Halvard Silli wrote:
>> You have put in the HTML5 spec that HTML5 can simply be extended
>> through writing a spec which extends it. However, you have not placed
>> inside HTML5 a mechanism by which a validator can know which version of
>> HTML5 to validate against.
>
> It should just validate against whatever it knows how to validate
> against. In the hopefully unlikely event that two different
> specifications approved by legitimate standards bodies specify
> conflicting conformance requirements, the validator would have to
> either choose one, or let the author manually choose. But I don't
> think we need to worry about that until we come to it. A validator
> could certainly validate both Microdata and HTML+RDFa.
So you reject Ian's problem description?
]]What I object to is making Microdata a second-class citizen that,
e.g., validators can validly claim is not part of HTML5.[[
--
leif halvard silli